Artificial joint with self-repairing textured composite film structure and preparation method

A composite film, artificial joint technology, applied in the field of implant medical devices, can solve the problems of carbon brazing and nano particles.

Active Publication Date: 2021-09-07
XIANGTAN UNIV
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, the methods to improve the wear resistance of radiation-crosslinked UHMWPE joint cups mainly include carbon brazing fiber and filler nano-particle reinforcement modification; the main method to improve the wear resistance of ce

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Artificial joint with self-repairing textured composite film structure and preparation method
  • Artificial joint with self-repairing textured composite film structure and preparation method
  • Artificial joint with self-repairing textured composite film structure and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] A method for preparing an artificial joint with a self-repairing textured composite film structure, which is carried out sequentially according to the following steps:

[0033](1) Grind and polish the radiation-crosslinked ultra-high molecular weight polyethylene joint acetabular cup on a polishing machine to a roughness Ra<0.2 μm, and ultrasonically clean them in absolute ethanol and deionized water for 30 min, and blow dry with dry nitrogen, Obtain a smooth inner surface of the acetabular cup;

[0034] (2) Using one or two processing methods of laser processing and photolithography processing technology, the circular hole micro-texture regularly arranged on the inner surface of the smooth joint cup is processed, and the diameter of the circular hole micro-texture is 120 μm , the depth is 8 μm, and the coverage area is 30% of the inner surface area of ​​the acetabular cup. The distance between the centers of the micro-textured shape holes is 200 μm to obtain a texture...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an artificial joint with a self-repairing textured composite film structure and a preparation method. The artificial joint comprises a radiation cross-linked ultra-high molecular weight polyethylene joint cup and a zirconia ceramic joint head, a circular hole micro-texture is processed on the inner surface of the joint cup, a capillary texture is processed on the surface of the joint head, and a layer of self-repairing textured composite film is grafted on the inner surface of the joint cup in friction with the joint head. The texturing adopted by the invention can improve the storage performance and the self-lubricating performance of the lubricating liquid to a great extent, and meanwhile, the self-repairing textured composite film can also enhance the adhesive force on the surface of the joint cup and is firm in combination; and the artificial joint is good in wear resistance and has the functions of self-repairing and sterile loosening prevention, and the service life of the artificial joint is prolonged.

Description

technical field [0001] The invention belongs to the field of implant medical devices, in particular to an artificial joint with a self-repairing textured composite film structure and a preparation method thereof. Background technique [0002] The artificial joint formed by the combination of radiation-crosslinked ultra-high molecular weight polyethylene acetabular cup and ceramic joint head has the advantage of high cost performance, and is still widely used clinically. During daily activities, artificial joints are prone to wear under repeated friction, especially in the load zone. Clinical trials have found that radiation-crosslinked ultra-high molecular weight polyethylene and zirconia ceramic joints will also produce a large amount of wear debris, and the accumulation of wear debris in the body will induce a series of adverse biological reactions in the basal cells, leading to a series of adverse biological reactions around the prosthesis. Osteolysis and aseptic looseni...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61L27/16A61L27/10A61L27/34A61L27/54C08J7/18C08J7/14A61F2/30C08L23/06
CPCA61L27/16A61L27/10A61L27/34A61L27/54C08J7/18C08J7/14A61F2/30A61F2/30942A61L2430/24C08J2323/06A61L2300/104A61L2300/404A61F2002/30378A61F2002/30362A61F2002/30985C08L23/06
Inventor 刘思思邓宇星刘慧斯扈万鑫姜胜强
Owner XIANGTAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap